XD driver bodies for various hubs

To run SRAM XX1 or XX0 11 speed you need a special XD driver body for your hub. A number of popular hubs have conversion driver/freehub bodies available:

Related articles:

Tune 15mm axle for King hubs

Quick facts:

Formula RX brakes

These are MY2012 versions and so feature the newer graphics as well as lever code numbers of FD532XX and caliper code numbers of FD520XX (last two digits denotes colour of master cylinder, caliper and/or annodized bore cap).

20" air forks for kids

There really is not much that's decent when it comes to 20" kids forks.  Most are heavy, oversprung and crappy performing el-cheapo forks. There are, however, a few good options:

Q-factors for various cranksets

This is a list I have pieced together from various articles and postings on the internet.

DIY stomp box information

Enclosure sizes

Fork rebound adjustment

Start with rebound in the fastest setting and the lockout off. Find a good, smooth fast corner you're comfortable attacking repeatedly. Keep adding more rebound damping until the bike feels nicely settled mid corner and through the ...